HEADER    TRANSCRIPTION                           12-FEB-99   1B9N              
TITLE     REGULATOR FROM ESCHERICHIA COLI                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (MODE);                                            
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    DNA-BINDING, GENE REGULATION, WINGED HELIX TURN HELIX, MOLYBDATE, OB  
KEYWDS   2 FOLD, TRANSCRIPTION                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.R.HALL,D.G.GOURLEY,W.N.HUNTER                                       
REVDAT   5   27-DEC-23 1B9N    1       REMARK LINK                              
REVDAT   4   06-NOV-19 1B9N    1       JRNL                                     
REVDAT   3   24-FEB-09 1B9N    1       VERSN                                    
REVDAT   2   23-SEP-03 1B9N    1       JRNL   SEQADV                            
REVDAT   1   15-MAR-00 1B9N    0                                                
JRNL        AUTH   D.R.HALL,D.G.GOURLEY,G.A.LEONARD,E.M.DUKE,L.A.ANDERSON,      
JRNL        AUTH 2 D.H.BOXER,W.N.HUNTER                                         
JRNL        TITL   THE HIGH-RESOLUTION CRYSTAL STRUCTURE OF THE                 
JRNL        TITL 2 MOLYBDATE-DEPENDENT TRANSCRIPTIONAL REGULATOR (MODE) FROM    
JRNL        TITL 3 ESCHERICHIA COLI: A NOVEL COMBINATION OF DOMAIN FOLDS.       
JRNL        REF    EMBO J.                       V.  18  1435 1999              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   10075916                                                     
JRNL        DOI    10.1093/EMBOJ/18.6.1435                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   D.R.HALL,D.G.GOURLEY,E.M.DUKE,G.A.LEONARD,L.A.ANDERSON,      
REMARK   1  AUTH 2 R.N.PAU,D.H.BOXER,W.N.HUNTER                                 
REMARK   1  TITL   TWO CRYSTAL FORMS OF MODE, THE MOLYBDATE-DEPENDENT           
REMARK   1  TITL 2 TRANSCRIPTIONAL REGULATOR FROM ESCHERICHIA COLI.             
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  55   542 1999              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1  PMID   10089372                                                     
REMARK   1  DOI    10.1107/S0907444998011354                                    
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   L.A.ANDERSON,T.PALMER,N.C.PRICE,S.BORNEMANN,D.H.BOXER,       
REMARK   1  AUTH 2 R.N.PAU                                                      
REMARK   1  TITL   CHARACTERISATION OF THE MOLYBDENUM-RESPONSIVE MODE           
REMARK   1  TITL 2 REGULATORY PROTEIN AND ITS BINDING TO THE PROMOTER REGION OF 
REMARK   1  TITL 3 THE MODABCD (MOLYBDENUM TRANSPORT) OPERON OF ESCHERICHIA     
REMARK   1  TITL 4 COLI.                                                        
REMARK   1  REF    EUR.J.BIOCHEM.                V. 246   119 1997              
REMARK   1  REFN                   ISSN 0014-2956                               
REMARK   1  PMID   9210473                                                      
REMARK   1  DOI    10.1111/J.1432-1033.1997.00119.X                             
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.09 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.09                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 28.63                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 37763                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.214                           
REMARK   3   FREE R VALUE                     : 0.286                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1934                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3794                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 309                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 31.98                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.12                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.207         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.205         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.138         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.012         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.016 ; 0.020               
REMARK   3    ANGLE DISTANCE                  (A) : 0.038 ; 0.040               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.044 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.237 ; 0.150               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.203 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.265 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : 0.210 ; 0.300               
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : 5.500 ; 7.000               
REMARK   3    STAGGERED                 (DEGREES) : 19.200; 15.000              
REMARK   3    TRANSVERSE                (DEGREES) : 30.100; 20.000              
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 3.171 ; 2.000                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 4.261 ; 3.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 3.671 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 5.031 ; 3.000                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1B9N COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-FEB-99.                  
REMARK 100 THE DEPOSITION ID IS D_1000000483.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : MAR-98                             
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM14                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 268449                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.090                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 28.630                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY                : 4.000                              
REMARK 200  R MERGE                    (I) : 0.06700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 15.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.09                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.15                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.42100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: A STARTING MODEL WAS DERIVED FROM MAD PHASED MAPS OF A       
REMARK 200  SELENOMETHIONYL DERIVATIVE OF THIS PROTEIN.                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 59.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.00                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5                                   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       40.55500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       63.68000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       40.55500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       63.68000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5900 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 23240 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -50.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A    -3                                                      
REMARK 465     GLY A    69                                                      
REMARK 465     GLY A    70                                                      
REMARK 465     LYS A    71                                                      
REMARK 465     GLY A    72                                                      
REMARK 465     GLY A    73                                                      
REMARK 465     GLY A    74                                                      
REMARK 465     GLY B    -3                                                      
REMARK 465     SER B    -2                                                      
REMARK 465     HIS B    -1                                                      
REMARK 465     ARG B    66                                                      
REMARK 465     ALA B    67                                                      
REMARK 465     THR B    68                                                      
REMARK 465     GLY B    69                                                      
REMARK 465     GLY B    70                                                      
REMARK 465     LYS B    71                                                      
REMARK 465     GLY B    72                                                      
REMARK 465     GLY B    73                                                      
REMARK 465     GLY B    74                                                      
REMARK 465     GLY B    75                                                      
REMARK 465     ARG B   138                                                      
REMARK 465     ASP B   139                                                      
REMARK 465     HIS B   140                                                      
REMARK 465     ASP B   141                                                      
REMARK 465     ASP B   142                                                      
REMARK 465     VAL B   143                                                      
REMARK 465     GLN B   144                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     SER A  -2    OG                                                  
REMARK 470     HIS A  -1    CG   ND1  CD2  CE1  NE2                             
REMARK 470     GLN A  13    CG   CD   OE1  NE2                                  
REMARK 470     THR A  68    OG1  CG2                                            
REMARK 470     LYS A 155    CG   CD   CE   NZ                                   
REMARK 470     GLN A 165    CG   CD   OE1  NE2                                  
REMARK 470     GLU A 211    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 215    CG   CD   OE1  OE2                                  
REMARK 470     ASN A 236    CG   OD1  ND2                                       
REMARK 470     THR A 239    OG1  CG2                                            
REMARK 470     ARG B 120    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN B 145    CG   CD   OE1  NE2                                  
REMARK 470     LYS B 155    CG   CD   CE   NZ                                   
REMARK 470     GLU B 215    CG   CD   OE1  OE2                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NE2  GLN B   242     O    HOH B   351              2.08            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    HIS A  27   CG    HIS A  27   CD2     0.054                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    MET A   1   C   -  N   -  CA  ANGL. DEV. =  16.3 DEGREES          
REMARK 500    LEU A  15   CA  -  CB  -  CG  ANGL. DEV. =  15.6 DEGREES          
REMARK 500    LEU A  15   CB  -  CG  -  CD1 ANGL. DEV. =  10.9 DEGREES          
REMARK 500    ASP A  18   CB  -  CG  -  OD1 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    ARG A  20   CD  -  NE  -  CZ  ANGL. DEV. =  16.1 DEGREES          
REMARK 500    ARG A  20   NE  -  CZ  -  NH2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ARG A  21   NE  -  CZ  -  NH1 ANGL. DEV. =   3.2 DEGREES          
REMARK 500    ARG A  21   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.3 DEGREES          
REMARK 500    ARG A  66   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A  80   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.2 DEGREES          
REMARK 500    ARG A 120   CD  -  NE  -  CZ  ANGL. DEV. =   8.7 DEGREES          
REMARK 500    ARG A 120   NE  -  CZ  -  NH1 ANGL. DEV. =   7.6 DEGREES          
REMARK 500    ARG A 128   NE  -  CZ  -  NH1 ANGL. DEV. =   4.5 DEGREES          
REMARK 500    ARG A 138   NE  -  CZ  -  NH1 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A 157   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ARG A 212   NE  -  CZ  -  NH1 ANGL. DEV. =   4.0 DEGREES          
REMARK 500    ARG A 212   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.4 DEGREES          
REMARK 500    ARG B  21   NE  -  CZ  -  NH1 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ARG B  21   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.4 DEGREES          
REMARK 500    ARG B  80   NE  -  CZ  -  NH2 ANGL. DEV. =   6.2 DEGREES          
REMARK 500    ARG B  84   NE  -  CZ  -  NH1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500    ARG B  84   NE  -  CZ  -  NH1 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ARG B  84   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.5 DEGREES          
REMARK 500    ASP B 106   CB  -  CG  -  OD1 ANGL. DEV. =   8.8 DEGREES          
REMARK 500    ARG B 128   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    ARG B 169   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    VAL B 233   N   -  CA  -  CB  ANGL. DEV. = -14.9 DEGREES          
REMARK 500    VAL B 235   CB  -  CA  -  C   ANGL. DEV. = -12.4 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    HIS A  -1      162.07    -41.65                                   
REMARK 500    MET A   1       99.29     66.78                                   
REMARK 500    PHE A  16      -66.96    -97.94                                   
REMARK 500    ASP A 106      156.36     67.23                                   
REMARK 500    SER A 122      -50.90   -129.27                                   
REMARK 500    ARG A 128      -22.63     72.97                                   
REMARK 500    GLN A 130       66.24   -154.14                                   
REMARK 500    LYS A 155      -35.78   -138.86                                   
REMARK 500    HIS A 209      141.45   -173.72                                   
REMARK 500    PRO A 224       -5.92    -58.48                                   
REMARK 500    GLU A 237        2.67    -68.63                                   
REMARK 500    ASN B 112      -65.35    -98.33                                   
REMARK 500    ILE B 162      136.13   -171.46                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    GLN A   2         10.13                                           
REMARK 500    GLY A  42         12.88                                           
REMARK 500    SER A 113        -10.37                                           
REMARK 500    ALA A 127         10.99                                           
REMARK 500    ARG A 128         10.78                                           
REMARK 500    GLN A 130         14.07                                           
REMARK 500    LEU A 158        -14.60                                           
REMARK 500    ILE A 162        -10.45                                           
REMARK 500    VAL A 219        -10.27                                           
REMARK 500    ILE B   5        -10.04                                           
REMARK 500    ILE B  34        -13.00                                           
REMARK 500    GLN B  83         10.47                                           
REMARK 500    ALA B  93        -10.37                                           
REMARK 500    ILE B 135         11.47                                           
REMARK 500    LEU B 172        -12.47                                           
REMARK 500    LEU B 182         10.76                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NI A 263  NI                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 139   OD1                                                    
REMARK 620 2 HIS A 140   NE2  85.1                                              
REMARK 620 3 HIS A 146   NE2 161.2  78.0                                        
REMARK 620 4 ASP A 148   OD1  97.3 115.6  97.4                                  
REMARK 620 5 ASP A 148   OD2  83.5 160.9 114.9  51.1                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 263                  
DBREF  1B9N A    1   262  UNP    P0A9G8   MODE_ECOLI       1    262             
DBREF  1B9N B    1   262  UNP    P0A9G8   MODE_ECOLI       1    262             
SEQADV 1B9N GLY A   -3  UNP  P0A9G8              SEE REMARK 999                 
SEQADV 1B9N SER A   -2  UNP  P0A9G8              SEE REMARK 999                 
SEQADV 1B9N HIS A   -1  UNP  P0A9G8              SEE REMARK 999                 
SEQADV 1B9N GLY B   -3  UNP  P0A9G8              SEE REMARK 999                 
SEQADV 1B9N SER B   -2  UNP  P0A9G8              SEE REMARK 999                 
SEQADV 1B9N HIS B   -1  UNP  P0A9G8              SEE REMARK 999                 
SEQRES   1 A  265  GLY SER HIS MET GLN ALA GLU ILE LEU LEU THR LEU LYS          
SEQRES   2 A  265  LEU GLN GLN LYS LEU PHE ALA ASP PRO ARG ARG ILE SER          
SEQRES   3 A  265  LEU LEU LYS HIS ILE ALA LEU SER GLY SER ILE SER GLN          
SEQRES   4 A  265  GLY ALA LYS ASP ALA GLY ILE SER TYR LYS SER ALA TRP          
SEQRES   5 A  265  ASP ALA ILE ASN GLU MET ASN GLN LEU SER GLU HIS ILE          
SEQRES   6 A  265  LEU VAL GLU ARG ALA THR GLY GLY LYS GLY GLY GLY GLY          
SEQRES   7 A  265  ALA VAL LEU THR ARG TYR GLY GLN ARG LEU ILE GLN LEU          
SEQRES   8 A  265  TYR ASP LEU LEU ALA GLN ILE GLN GLN LYS ALA PHE ASP          
SEQRES   9 A  265  VAL LEU SER ASP ASP ASP ALA LEU PRO LEU ASN SER LEU          
SEQRES  10 A  265  LEU ALA ALA ILE SER ARG PHE SER LEU GLN THR SER ALA          
SEQRES  11 A  265  ARG ASN GLN TRP PHE GLY THR ILE THR ALA ARG ASP HIS          
SEQRES  12 A  265  ASP ASP VAL GLN GLN HIS VAL ASP VAL LEU LEU ALA ASP          
SEQRES  13 A  265  GLY LYS THR ARG LEU LYS VAL ALA ILE THR ALA GLN SER          
SEQRES  14 A  265  GLY ALA ARG LEU GLY LEU ASP GLU GLY LYS GLU VAL LEU          
SEQRES  15 A  265  ILE LEU LEU LYS ALA PRO TRP VAL GLY ILE THR GLN ASP          
SEQRES  16 A  265  GLU ALA VAL ALA GLN ASN ALA ASP ASN GLN LEU PRO GLY          
SEQRES  17 A  265  ILE ILE SER HIS ILE GLU ARG GLY ALA GLU GLN CYS GLU          
SEQRES  18 A  265  VAL LEU MET ALA LEU PRO ASP GLY GLN THR LEU CYS ALA          
SEQRES  19 A  265  THR VAL PRO VAL ASN GLU ALA THR SER LEU GLN GLN GLY          
SEQRES  20 A  265  GLN ASN VAL THR ALA TYR PHE ASN ALA ASP SER VAL ILE          
SEQRES  21 A  265  ILE ALA THR LEU CYS                                          
SEQRES   1 B  265  GLY SER HIS MET GLN ALA GLU ILE LEU LEU THR LEU LYS          
SEQRES   2 B  265  LEU GLN GLN LYS LEU PHE ALA ASP PRO ARG ARG ILE SER          
SEQRES   3 B  265  LEU LEU LYS HIS ILE ALA LEU SER GLY SER ILE SER GLN          
SEQRES   4 B  265  GLY ALA LYS ASP ALA GLY ILE SER TYR LYS SER ALA TRP          
SEQRES   5 B  265  ASP ALA ILE ASN GLU MET ASN GLN LEU SER GLU HIS ILE          
SEQRES   6 B  265  LEU VAL GLU ARG ALA THR GLY GLY LYS GLY GLY GLY GLY          
SEQRES   7 B  265  ALA VAL LEU THR ARG TYR GLY GLN ARG LEU ILE GLN LEU          
SEQRES   8 B  265  TYR ASP LEU LEU ALA GLN ILE GLN GLN LYS ALA PHE ASP          
SEQRES   9 B  265  VAL LEU SER ASP ASP ASP ALA LEU PRO LEU ASN SER LEU          
SEQRES  10 B  265  LEU ALA ALA ILE SER ARG PHE SER LEU GLN THR SER ALA          
SEQRES  11 B  265  ARG ASN GLN TRP PHE GLY THR ILE THR ALA ARG ASP HIS          
SEQRES  12 B  265  ASP ASP VAL GLN GLN HIS VAL ASP VAL LEU LEU ALA ASP          
SEQRES  13 B  265  GLY LYS THR ARG LEU LYS VAL ALA ILE THR ALA GLN SER          
SEQRES  14 B  265  GLY ALA ARG LEU GLY LEU ASP GLU GLY LYS GLU VAL LEU          
SEQRES  15 B  265  ILE LEU LEU LYS ALA PRO TRP VAL GLY ILE THR GLN ASP          
SEQRES  16 B  265  GLU ALA VAL ALA GLN ASN ALA ASP ASN GLN LEU PRO GLY          
SEQRES  17 B  265  ILE ILE SER HIS ILE GLU ARG GLY ALA GLU GLN CYS GLU          
SEQRES  18 B  265  VAL LEU MET ALA LEU PRO ASP GLY GLN THR LEU CYS ALA          
SEQRES  19 B  265  THR VAL PRO VAL ASN GLU ALA THR SER LEU GLN GLN GLY          
SEQRES  20 B  265  GLN ASN VAL THR ALA TYR PHE ASN ALA ASP SER VAL ILE          
SEQRES  21 B  265  ILE ALA THR LEU CYS                                          
HET     NI  A 263       1                                                       
HETNAM      NI NICKEL (II) ION                                                  
FORMUL   3   NI    NI 2+                                                        
FORMUL   4  HOH   *309(H2 O)                                                    
HELIX    1   1 PRO A   19  SER A   31  1                                  13    
HELIX    2   2 ILE A   34  ALA A   41  1                                   8    
HELIX    3   3 TYR A   45  SER A   59  1                                  15    
HELIX    4   4 ARG A   80  ASP A  105  1                                  26    
HELIX    5   5 LEU A  114  PHE A  121  1                                   8    
HELIX    6   6 ALA A  164  ARG A  169  1                                   6    
HELIX    7   7 ALA A  184  TRP A  186  5                                   3    
HELIX    8   8 GLU A  193  GLN A  197  1                                   5    
HELIX    9   9 ASN A  236  ALA A  238  5                                   3    
HELIX   10  10 ALA A  253  SER A  255  5                                   3    
HELIX   11  11 PRO B   19  SER B   31  1                                  13    
HELIX   12  12 ILE B   34  ALA B   41  1                                   8    
HELIX   13  13 TYR B   45  SER B   59  1                                  15    
HELIX   14  14 ARG B   80  LEU B  103  1                                  24    
HELIX   15  15 LEU B  114  ALA B  117  1                                   4    
HELIX   16  16 ALA B  164  LEU B  170  1                                   7    
HELIX   17  17 ALA B  184  TRP B  186  5                                   3    
HELIX   18  18 GLU B  193  ASN B  198  1                                   6    
HELIX   19  19 VAL B  235  GLU B  237  5                                   3    
HELIX   20  20 ALA B  253  SER B  255  5                                   3    
SHEET    1   A 2 VAL A  64  ARG A  66  0                                        
SHEET    2   A 2 ALA A  76  LEU A  78 -1  N  VAL A  77   O  GLU A  65           
SHEET    1   B 5 ARG A 157  ALA A 161  0                                        
SHEET    2   B 5 HIS A 146  LEU A 150 -1  N  VAL A 149   O  LEU A 158           
SHEET    3   B 5 GLN A 130  THR A 136 -1  N  THR A 136   O  ASP A 148           
SHEET    4   B 5 GLU A 177  LEU A 181 -1  N  ILE A 180   O  TRP A 131           
SHEET    5   B 5 ILE A 257  ALA A 259 -1  N  ALA A 259   O  LEU A 179           
SHEET    1   C 3 GLY A 188  THR A 190  0                                        
SHEET    2   C 3 ASN A 246  PHE A 251 -1  N  TYR A 250   O  GLY A 188           
SHEET    3   C 3 ASN A 201  ILE A 206 -1  N  GLY A 205   O  VAL A 247           
SHEET    1   D 3 THR A 228  PRO A 234  0                                        
SHEET    2   D 3 GLN A 216  ALA A 222 -1  N  MET A 221   O  LEU A 229           
SHEET    3   D 3 ILE A 207  GLU A 211 -1  N  GLU A 211   O  GLU A 218           
SHEET    1   E 2 LEU A   9  LEU A  11  0                                        
SHEET    2   E 2 LYS A  14  ALA A  17 -1  N  ALA A  17   O  LEU A   9           
SHEET    1   F 5 ARG B 157  ALA B 161  0                                        
SHEET    2   F 5 HIS B 146  LEU B 151 -1  N  VAL B 149   O  LEU B 158           
SHEET    3   F 5 ASN B 129  ILE B 135 -1  N  THR B 134   O  LEU B 150           
SHEET    4   F 5 GLU B 177  LEU B 182 -1  N  LEU B 182   O  ASN B 129           
SHEET    5   F 5 ILE B 257  ALA B 259 -1  N  ALA B 259   O  LEU B 179           
SHEET    1   G 5 GLY B 188  THR B 190  0                                        
SHEET    2   G 5 ASN B 246  PHE B 251 -1  N  TYR B 250   O  GLY B 188           
SHEET    3   G 5 ASN B 201  ARG B 212 -1  N  GLY B 205   O  VAL B 247           
SHEET    4   G 5 GLN B 216  LEU B 223 -1  N  ALA B 222   O  ILE B 206           
SHEET    5   G 5 THR B 228  PRO B 234 -1  N  VAL B 233   O  CYS B 217           
SHEET    1   H 2 LEU B   9  LEU B  11  0                                        
SHEET    2   H 2 LYS B  14  ALA B  17 -1  N  ALA B  17   O  LEU B   9           
LINK         OD1 ASP A 139                NI    NI A 263     1555   1555  2.14  
LINK         NE2 HIS A 140                NI    NI A 263     1555   1555  2.48  
LINK         NE2 HIS A 146                NI    NI A 263     1555   1555  1.80  
LINK         OD1 ASP A 148                NI    NI A 263     1555   1555  2.45  
LINK         OD2 ASP A 148                NI    NI A 263     1555   1555  2.55  
SITE     1 AC1  4 ASP A 139  HIS A 140  HIS A 146  ASP A 148                    
CRYST1   81.110  127.360   62.950  90.00  90.00  90.00 P 21 21 2     8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.012329  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007852  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015886        0.00000